CN220996531U - Vehicle rear wheel cover assembly - Google Patents

Abstract

The utility model discloses a vehicle rear wheel cover assembly, comprising a rear wheel cover inner plate, a rear wheel cover outer plate, a side enclosure reinforcing cross beam, a rear wheel cover reinforcing member I and a rear wheel cover reinforcing member II. The rear wheel cover inner plate and the rear wheel cover outer plate are buckled and assembled to form a whole. The rear wheel cover inner plate is fixed on a rear longitudinal beam close thereto. The top surface of the rear longitudinal beam extends upward to form a mounting position for a rear shock absorber. The rear wheel cover reinforcing member I is located at the longitudinal front side of the rear shock absorber mounting position to connect the longitudinal front end of the rear longitudinal beam and the side enclosure reinforcing cross beam. The rear wheel cover reinforcing member II is located at the longitudinal rear side of the rear shock absorber mounting position to connect the longitudinal rear end of the rear longitudinal beam and the side enclosure reinforcing cross beam. The structural strength of the vehicle rear wheel cover can be improved, the vibration absorption of the rear section of the vehicle can be ensured, and road noise can be reduced.

Description

Vehicle rear wheel cover assembly

Technical Field

The utility model relates to the field of vehicle parts, in particular to a vehicle rear wheel cover assembly.

Background technique

When a pure electric vehicle is driving on a rough road, the road noise becomes more prominent in the passenger compartment due to the lack of noise masking from the engine and intake and exhaust of a traditional fuel vehicle. Therefore, the road noise control of electric vehicles is more stringent than that of traditional fuel vehicles. The rear wheel cover is arranged above the rear wheel, and its structural stiffness needs to be controlled to avoid loud road noise and cause complaints from passengers.

The main ways to strengthen the rear wheel cover of existing electric vehicles are: sticking asphalt damping pads on the inside of the rear wheel cover and designing structural reinforcement brackets; when asphalt damping pads are used on the inside of the rear wheel cover of a car, the asphalt material will emit harmful gases such as benzene, causing the VOC of the entire vehicle to fail to meet the standards; when a structural reinforcement bracket is designed on the rear wheel cover of a car, a flat plate reinforcement is usually arranged on the top of the rear wheel cover and connected by welding points. This structure can improve the stiffness of the wheel cover to a certain extent, but the stiffness improvement effect is limited and the cost performance is low.

Therefore, in order to solve the above problems, a vehicle rear wheel cover assembly is needed, which can improve the structural strength of the vehicle rear wheel cover, ensure the vibration absorption of the rear section of the vehicle, and reduce road noise.

Summary of the invention

In view of this, the purpose of the utility model is to overcome the defects in the prior art and provide a vehicle rear wheel cover assembly that can improve the structural strength of the vehicle rear wheel cover, ensure vibration absorption of the rear section of the vehicle, and reduce road noise.

The utility model discloses a vehicle rear wheel cover assembly, comprising a rear wheel cover inner plate, a rear wheel cover outer plate, a side enclosure reinforcing cross beam, a rear wheel cover reinforcement member I and a rear wheel cover reinforcement member II. The rear wheel cover inner plate and the rear wheel cover outer plate are assembled and fastened to form a whole. The rear wheel cover inner plate is fixed on a rear longitudinal beam adjacent thereto. The top surface of the rear longitudinal beam extends upward to form a mounting position for a rear shock absorber. The rear wheel cover reinforcement member I is located at the longitudinal front side of the rear shock absorber mounting position and connects the longitudinal front end of the rear longitudinal beam and the side enclosure reinforcing cross beam. The rear wheel cover reinforcement member II is located at the longitudinal rear side of the rear shock absorber mounting position and connects the longitudinal rear end of the rear longitudinal beam and the side enclosure reinforcing cross beam.

Furthermore, the rear wheel housing reinforcement I has a front section bend protruding rearward along the longitudinal direction, and the rear wheel housing reinforcement II has a rear section bend protruding forward along the longitudinal direction, and the front section bend and the rear section bend are close to each other in the longitudinal direction.

Furthermore, the rear wheel cover reinforcement II has an auxiliary support arm that is bent from the rear section and extends downward in the height direction, and the end of the auxiliary support arm is connected to the rear shock absorber mounting position.

Furthermore, the auxiliary support arm has a strip reinforcement rib which is approximately parallel to the auxiliary support arm.

Furthermore, the lateral outer end surface of the rear longitudinal beam is bent upward to form an outer connecting flange, and the upper end surface of the rear longitudinal beam in the height direction extends inward to form an inner connecting flange; the rear wheel cover reinforcement I and the rear wheel cover reinforcement II are fixed on the outer connecting flange of the rear longitudinal beam, and the C-ring frame crossbeam and the D-ring frame crossbeam are fixed on the inner connecting flange of the rear longitudinal beam.

Furthermore, the rear wheel housing reinforcement I and the C-ring frame cross beam are located in the same longitudinal section I, and the rear wheel housing reinforcement II and the D-ring frame cross beam are located in the same longitudinal section II; the longitudinal sections I and II are parallel.

Furthermore, a plurality of triangular supporting ribs are connected between the outer connecting flange and the inner connecting flange.

Furthermore, the side panel reinforcement beam includes an outer panel reinforcement beam fixed to the top edge of the rear wheel cover outer panel and an inner panel reinforcement beam fixed to the top edge of the rear wheel cover inner panel. The outer panel reinforcement beam and the inner panel reinforcement beam together form a force transmission chamber with a closed longitudinal section.

Furthermore, the rear wheel cover reinforcement I is provided with a weight-reducing hole I.

Furthermore, the outer plate reinforcement beam is provided with a weight-reducing hole II.

The beneficial effects of the utility model are as follows: a vehicle rear wheel cover assembly disclosed by the utility model improves the stiffness of the rear wheel cover panel structure and the stiffness of the shock absorber installation point by designing a reinforced structure in the rear wheel cover of the vehicle, thereby reducing or suppressing the noise generated by the transmission of road surface excitation to the rear wheel cover (response point); the rear wheel cover stiffness is improved by using a sheet metal bracket structure, which will not generate harmful gases and will not cause the VOC of the entire vehicle to deteriorate; and the rear wheel cover reinforcement I and the rear wheel cover reinforcement II are arranged on both longitudinal sides of the rear shock absorber installation position, which can further ensure the structural reliability of the components near the rear wheel cover, improve the local mode of the structure, ensure the vibration absorption of the rear section of the vehicle, and reduce noise.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described below in conjunction with the accompanying drawings and embodiments:

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG. 2 is an exploded schematic diagram of the structure of the rear wheel cover of the present invention.

Detailed ways

FIG1 is a schematic diagram of the structure of the utility model. As shown in the figure, the transverse direction is the extension direction of the vehicle cross beam, the inner transverse direction is close to the transverse middle of the vehicle, the outer transverse direction is opposite to the inner direction, the longitudinal direction is the extension direction of the vehicle longitudinal beam, the front longitudinal direction is from the longitudinal middle of the vehicle to the front direction of the vehicle, the rear longitudinal direction is opposite to the front direction, and the height direction is the height direction of the vehicle, which will not be repeated here; the vehicle rear wheel cover assembly in this embodiment includes a rear wheel cover inner plate 1, a rear wheel cover outer plate 2, and a side reinforcement transverse plate. The rear wheel cover reinforcement I3 and the rear wheel cover reinforcement II4 are respectively provided on the rear longitudinal beam 5 and the rear wheel cover outer beam 2, the rear wheel cover inner panel 1 and the rear wheel cover outer panel 2 are assembled together to form a whole, the rear wheel cover inner panel 1 is fixed on the rear longitudinal beam 5 close thereto, the top surface of the rear longitudinal beam 5 extends upward to form a mounting position for the rear shock absorber, the rear wheel cover reinforcement I3 is located on the longitudinal front side of the rear shock absorber mounting position 6, and connects the longitudinal front end of the rear longitudinal beam 5 and the side reinforcement cross beam, the rear wheel cover reinforcement II is located on the longitudinal rear side of the rear shock absorber mounting position 6, and connects the longitudinal rear end of the rear longitudinal beam 5 and the side reinforcement cross beam. By designing a reinforced structure in the rear wheel cover of the automobile, the stiffness of the rear wheel cover panel structure and the stiffness of the shock absorber mounting point are improved, thereby reducing or suppressing the noise generated by the transmission of road excitation to the rear wheel cover (response point); the sheet metal bracket structure is used to enhance the stiffness of the rear wheel cover, which will not produce harmful gases and will not cause the VOC of the entire vehicle to deteriorate; and the rear wheel cover reinforcement Ⅰ3 and the rear wheel cover reinforcement Ⅱ4 are arranged on both sides of the longitudinal direction of the rear shock absorber mounting position 6, which can further ensure the structural reliability of the components near the rear wheel cover, improve the local mode of the structure, ensure the vibration absorption of the rear section of the vehicle, and reduce noise.

In this embodiment, the rear wheel housing reinforcement I3 has a front section bend protruding backward in the longitudinal direction, and the rear wheel housing reinforcement II4 has a rear section bend protruding forward in the longitudinal direction, and the front section bend and the rear section bend are close to each other in the longitudinal direction. Moreover, the position where the front section bend and the rear section bend are close to each other in the longitudinal direction is close to the vehicle chassis in the height direction to improve its structural stability, and form an inverted triangle or hourglass-shaped stable force transmission configuration, and move the longitudinal collapse point closer to the middle space of the rear wheel housing reinforcement I3 and the rear wheel housing reinforcement II4, and form a more compact force transmission configuration, which can better protect the passengers in the event of a side collision and improve safety; it can ensure the structural strength and stiffness of the rear section of the vehicle body, meet the requirements of bending and torsion mode, fatigue durability and collision energy absorption, improve the vehicle NVH performance, and meet customer needs.

In this embodiment, the rear wheel housing reinforcement II has an auxiliary arm 7 that is bent from the rear section and extends downward in the height direction, and the end of the auxiliary arm 7 is connected to the rear shock absorber mounting position 6. As shown in the figure, the rear wheel housing reinforcement II is in an inverted "Y" shape, taking into account the connection between the overall D-pillar and the chassis and the rear shock absorber, making the structure of the entire rear section of the vehicle more compact and the force transmission effect better. Furthermore, the auxiliary arm 7 has a strip reinforcement rib 8 that is approximately parallel to the auxiliary arm 7, which further improves the structural strength of this part, meets the requirements of bending and torsion mode, fatigue durability and collision energy absorption, and improves the NVH performance of the vehicle.

In this embodiment, the lateral outer end surface of the rear longitudinal beam is bent upward to form an outer connecting flange 9, and the upper end surface of the rear longitudinal beam in the height direction extends inward to form an inner connecting flange 10; the rear wheel housing reinforcement I and the rear wheel housing reinforcement II are fixed on the outer connecting flange 9 of the rear longitudinal beam, and the C-ring frame crossbeam and the D-ring frame crossbeam are fixed on the inner connecting flange 10 of the rear longitudinal beam; the rear wheel housing reinforcement I and the C-ring frame crossbeam are located in the same longitudinal section I, and the rear wheel housing reinforcement II and the D-ring frame crossbeam are located in the same longitudinal section II; the longitudinal sections I and II are parallel; that is, as shown in the figure, the C-ring bottom section and the D-ring bottom section are parallel to each other, so as to improve the force transmission stability of the rear section of the vehicle, so that the driving stability of the whole vehicle is better, and the structural strength and stiffness of the rear section of the vehicle body can be guaranteed, the requirements of bending-torsion mode and fatigue durability are met, and the ride comfort is improved.

In this embodiment, a plurality of triangular support ribs 11 are connected between the outer connection flange 9 and the inner connection flange 10. As shown in the figure, a plurality of triangular support ribs 11 are spaced and closely arranged on the top surface of the inner connection flange 10 and fixed to the outer connection flange 9 along the longitudinal direction, so as to ensure the bearing capacity of the longitudinal beam, improve its local rigidity, and enhance the structural stability of the rear section of the vehicle.

In this embodiment, the side reinforcement beam includes an outer panel reinforcement beam 12 fixed to the top edge of the rear wheel housing outer panel 2 and an inner panel reinforcement beam 13 fixed to the top edge of the rear wheel housing inner panel 1. The outer panel reinforcement beam 12 and the inner panel reinforcement beam 13 together form a force transmission chamber with a closed longitudinal section. The force transmission chamber can further connect the rear wheel housing reinforcement member I3 and the rear wheel housing reinforcement member II4 to form an integral force transmission structure, which can improve the rear triangular window support stiffness, and at the same time, can also improve the connection stiffness and stability of the C and D pillars, ensure the overall stability of the rear section of the vehicle, and add a force transmission path, effectively improving the road noise performance of the whole vehicle and the comfort inside the vehicle.

In this embodiment, the rear wheel housing reinforcement member I3 has a weight-reducing hole I14, and the outer plate reinforcement beam 12 has a weight-reducing hole II15, so as to achieve lightweight while meeting the support stiffness.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims (10)

1. A rear wheel cover assembly for a vehicle, characterized in that: including rear wheel cover inner panel, rear wheel cover planking, side wall entablature, rear wheel cover reinforcement I and rear wheel cover reinforcement II, rear wheel cover inner panel and rear wheel cover planking lock assembly form wholly, the rear wheel cover inner panel is fixed on the back longeron that is close to with it, the top surface of back longeron upwards extends the installation position that forms the rear shock absorber, rear wheel cover reinforcement I is located the longitudinal front side of rear shock absorber installation position, connects the longitudinal front end of back longeron and side wall entablature, rear wheel cover reinforcement II is located the longitudinal rear side of rear shock absorber installation position, connects the longitudinal rear end of back longeron and side wall entablature.

2. The vehicle rear wheel cover assembly according to claim 1, wherein: the rear wheel cover reinforcement I is provided with a front section bending protruding backwards in the longitudinal direction, the rear wheel cover reinforcement II is provided with a rear section bending protruding forwards in the longitudinal direction, and the front section bending and the rear section bending are close to each other in the longitudinal direction.

3. The vehicle rear wheel cover assembly according to claim 2, wherein: the rear wheel cover reinforcement II is provided with an auxiliary support arm which is bent from the rear section and extends downwards in the height direction, and the end head of the auxiliary support arm is connected to the rear shock absorber installation position.

4. A rear wheel cover assembly as claimed in claim 3, wherein: the auxiliary support arm is provided with a strip-shaped reinforcing rib approximately parallel to the auxiliary support arm.

5. The vehicle rear wheel cover assembly according to claim 1, wherein: the transverse outer end of the rear longitudinal beam is upwards bent to form an outer connecting flanging, and the upper end surface of the rear longitudinal beam extends inwards to form an inner connecting flanging; the rear wheel cover reinforcing piece I and the rear wheel cover reinforcing piece II are fixed on the outer connection flanging of the rear longitudinal beam, and the C-ring frame cross beam and the D-ring frame cross beam are fixed on the inner connection flanging of the rear longitudinal beam.

6. The vehicle rear wheel cover assembly according to claim 5, wherein: the rear wheel cover reinforcement I and the C-ring frame cross beam are positioned on the same vertical section I, and the rear wheel cover reinforcement II and the D-ring frame cross beam are positioned on the same vertical section II; the vertical section I and the vertical section II are parallel.

7. The vehicle rear wheel cover assembly according to claim 5, wherein: and a plurality of triangular supporting ribs are connected between the external connection flanging and the internal connection flanging.

8. The vehicle rear wheel cover assembly according to claim 1, wherein: the side wall reinforcing beam comprises an outer plate reinforcing beam fixed on the top edge of the outer plate of the rear wheel cover and an inner plate reinforcing beam fixed on the top edge of the inner plate of the rear wheel cover, and the outer plate reinforcing beam and the inner plate reinforcing beam are surrounded to form a force transmission cavity with a closed longitudinal section.

9. The vehicle rear wheel cover assembly according to claim 1, wherein: the rear wheel cover reinforcement I is provided with a lightening hole I.

10. The vehicle rear wheel cover assembly according to claim 8, wherein: and the outer plate reinforcing beam is provided with a lightening hole II.